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Mass Transfer

Mass Transfer
The film penetration model of mass transfer was enunciated by

Stefan
Fick
Gilliland
Toor and Marchello

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Mass Transfer
The Hatta number is important in

Gas absorption with chemical reaction
Binary distillation
Multicomponent distillation
Gas absorption without chemical reaction

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Mass Transfer
It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

15 min
51 min
71 min
94 min

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Mass Transfer
For the same process conditions, the reflux ratio of an unlagged distillation column

None of these
Increases in summer
Increases in winter
Decreases in winter

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Mass Transfer
Schmidt number is given by

Re.Pe
Re/Pe
Μ/ρDAB
Sh x Pe

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Mass Transfer
The commonly used solvent in supercritical extraction is

Carbon tetrachloride
Water
Carbon dioxide
Methyl ethyl ketone

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MORE MCQ ON Mass Transfer

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